scholarly journals ISO spectroscopy of nearby starburst galaxies

1999 ◽  
Vol 193 ◽  
pp. 745-746 ◽  
Author(s):  
Dietmar Kunze ◽  
Dieter Lutz ◽  
Dimitra Rigopoulou ◽  
Michelle D. Thornley ◽  
Reinhard Genzel
Keyword(s):  
Wavelength Range ◽  
Short Wavelength ◽  
Molecular Hydrogen ◽  
Starburst Galaxies ◽  
Line Ratio ◽  
Emission Lines ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
Atomic Species

We present spectroscopic mid-IR observations of prominent starburst galaxies obtained with the Short Wavelength Spectrometer onboard the Infrared Space Observatory. The wavelength range accessible by ISO-SWS (2.5–45 μm) contains a large number of emission lines of atomic and molecular hydrogen and several other atomic species. In this paper we discuss the interpretation of the [Ne III] 15.5 μm/[Ne II] 12.8 μm line-ratio, the faint [OIV]25.9 μm line and the pure rotational lines of molecular hydrogen observed in our target galaxies.

scholarly journals AGN Spectra as Seen by the Infrared Space Observatory: First Results

1997 ◽  
Vol 159 ◽  
pp. 333-336
Author(s):  
D. Lutz ◽  
R. Genzel ◽  
E. Sturm ◽  
A.F.M. Moorwood ◽  
E. Oliva ◽  
...  
Keyword(s):  
Fine Structure ◽  
Short Wavelength ◽  
Molecular Hydrogen ◽  
Molecular Gas ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
First Results ◽  
External Galaxies ◽  
First Time ◽  
Fine Structure Lines

AbstractWe discuss 2.5–45 µm spectra of the Circinus galaxy and of Cen A, obtained with the Short Wavelength Spectrometer (SWS) on board the Infrared Space Observatory. The large number of detected ionic fine structure lines, observable also in visually obscured sources, provides strong constraints on the shape of the ionizing spectrum, which is found to exhibit a UV bump peaking at ~ 70 eV in the case of Circinus. Pure rotational emission of molecular hydrogen, directly probing warm molecular gas, can for the first time be detected in external galaxies.

scholarly journals Detection of thermal water vapor emission from W Hydrae

1997 ◽  
Vol 178 ◽  
pp. 385-388
Author(s):  
David A. Neufeld ◽  
Wesley Chen ◽  
Gary J. Melnick ◽  
Thijs De Graauw ◽  
Helmut Feuchtgruber ◽  
...  
Keyword(s):  
Water Vapor ◽  
Short Wavelength ◽  
Thermal Water ◽  
Far Infrared ◽  
Infrared Emission ◽  
Emission Lines ◽  
Space Observatory ◽  
Infrared Space Observatory

We have detected four far-infrared emission lines of water vapor toward the evolved star W Hydrae, using the Short Wavelength Spectrometer (SWS) of the Infrared Space Observatory (ISO). This is the first detection of thermal water vapor emission from a circumstellar outflow.

scholarly journals The ISO-SWS flux standard stars: synthetic spectra and observations

1997 ◽  
Vol 189 ◽  
pp. 89-92
Author(s):  
N.S. van der Bliek ◽  
P.W. Morris ◽  
B. Vandenbussche ◽  
L.B.F.M. Waters ◽  
P. Zaal ◽  
...  
Keyword(s):  
Wavelength Range ◽  
Short Wavelength ◽  
Circumstellar Dust ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
Synthetic Spectra ◽  
Flux Calibration

We present flux-calibrated, synthetic spectra for the calibration stars of the Short Wavelength Spectrometer of the Infrared Space Observatory ISO-SWS (cf. Kessler et al. 1996). ISO-SWS covers a wavelength range of 2.4 to 45 μm (cf. de Graauw et al. 1996), and although in the NIR the flux calibration of Vega can be used, at longer wavelengths the flux calibration has to be extrapolated by other means, because (i) Vega has at λ ≥ 25 μm an IR excess due to circumstellar dust and (ii) there is an, as yet, unresolved controversy about Vega's flux at 10 μm (cf. Rieke et al. 1985). The majority of the standard stars of SWS are of MK class G and K III, as cool giants are amongst the brightest objects in the IR, and model atmospheres for cool giants are available and well-studied (cf. Jørgensen and Gustafsson 1994).

scholarly journals Infrared spectroscopy with the Infrared Space Observatory

1997 ◽  
Vol 178 ◽  
pp. 373-384
Author(s):  
R. Genzel ◽  
S. Drapatz ◽  
D. Lutz ◽  
C. Wright ◽  
Th. De Graauw
Keyword(s):  
Infrared Spectroscopy ◽  
Short Wavelength ◽  
Emission Lines ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
Molecular Emission ◽  
First Results

The Infrared Space Observatory (ISO) is opening the 2.5 to 200 μm band for detailed infrared spectroscopy. Concentrating on ionic and molecular emission lines observed with the Short Wavelength Spectrometer (SWS) we discuss ISO's first results on Galactic and extragalactic sources.

scholarly journals First Results and Discoveries with the ISO Short-Wavelength Spectrometer

1998 ◽  
Vol 11 (2) ◽  
pp. 1113-1115
Author(s):  
Thijs De Graauw
Keyword(s):  
Spectral Resolution ◽  
Short Wavelength ◽  
Wave Length ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
Length Range ◽  
First Results ◽  
Scientific Results

AbstractThe Short-Wavelength Spectrometer(SWS) is one of the four instruments on-board of ESA’s Infrared Space Observatory(ISO), launched on 15 Nov. 1995. It covers the wave-length range of 2.38-45.2μm with a spectral resolution ranging from 1000-2000. An overview is given of the in-orbit performance and a summary of the main scientific results and discoveries obtained in the first 18 months of operation of the ISO-SWS.

scholarly journals The central stars of the Planetary Nebulae NGC 7027 and NGC 6543

1997 ◽  
Vol 180 ◽  
pp. 134-134
Author(s):  
P.A.M. Van Hoof ◽  
D. A. Beintema ◽  
F. Lahuis ◽  
S. R. Pottasch
Keyword(s):  
Infrared Spectra ◽  
Short Wavelength ◽  
Planetary Nebulae ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
Ngc 7027 ◽  
Photo Ionization ◽  
Central Stars

Infrared spectra of NGC 7027 and NGC 6543 ranging from 2.4 μm to 45 μm were obtained with the Short Wavelength Spectrometer on board the Infrared Space Observatory. A first analysis of these spectra, with the aid of photo-ionization models, is presented in Beintema et al. (1996).

Experiences with cryogenic short-wavelength spectrometer for Infrared Space Observatory

Cryogenics ◽  
1993 ◽  
Vol 33 (4) ◽  
pp. 402-410 ◽  
Author(s):  
K.J. Wildeman ◽  
W. Luinge ◽  
D.A. Beintema ◽  
Th. de Graauw ◽  
G.R. Ploeger ◽  
...  
Keyword(s):  
Short Wavelength ◽  
Space Observatory ◽  
Infrared Space Observatory

[ITAL]INFRARED SPACE OBSERVATORY[/ITAL][ITAL]Infrared Space Observatory[/ITAL] Short Wavelength Spectrometer Observations of V1425 Aquilae (Nova Aquila 1995)

2001 ◽  
Vol 122 (6) ◽  
pp. 3305-3312 ◽  
Author(s):  
J. E. Lyke ◽  
R. D. Gehrz ◽  
C. E. Woodward ◽  
M. J. Barlow ◽  
D. Péquignot ◽  
...  
Keyword(s):  
Short Wavelength ◽  
Space Observatory ◽  
Infrared Space Observatory
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